| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Dry Creek Bridge | FAS 2860 over Dry Creek | Open to traffic | Pony truss | 1910 | -- | 49.9 ft. | 50.9 ft. |
| East Branch North Fork Elkhorn River Bridge | County road over East Branch North Fork Elkhorn River | Open to traffic | Pony truss | 1935 | -- | 68.9 ft. | 71.9 ft. |
| Hadar Creek Bridge | County road over Hadar Creek | Open to traffic | Pony truss | 1935 | -- | 64.0 ft. | 65.9 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Pony truss | 1935 | -- | 80.1 ft. | 97.1 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Pony truss | 1920 | -- | 80.1 ft. | 129.9 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Pony truss | 1910 | -- | 80.1 ft. | 82.0 ft. |
| North Fork Elkhorn River Bridge | FAS 2860 over North Fork Elkhorn River | Open to traffic | Pony truss | 1935 | -- | 80.1 ft. | 81.0 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Pony truss | 1935 | -- | 79.1 ft. | 82.0 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Pony truss | 1935 | -- | 59.1 ft. | 62.0 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Pony truss | 1935 | -- | 68.9 ft. | 70.9 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Truss | 1913 | -- | -- | 98.1 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Pony truss | 1935 | -- | 80.1 ft. | 82.0 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Truss | 1913 | -- | -- | 61.0 ft. |
| North Fork Elkhorn River Bridge | County road over North Fork Elkhorn River | Open to traffic | Pony truss | 1910 | -- | 80.1 ft. | 82.0 ft. |
| Unnamed Stream Bridge | County road over Unnamed stream | Open to traffic | Pony truss | 1914 | -- | 49.9 ft. | 50.9 ft. |
| Unnamed Stream Bridge | COLL 7716 over Unnamed stream | Open to traffic | Pony truss | 1910 | -- | 44.9 ft. | 45.9 ft. |
| Unnamed Stream Bridge | County road over Unnamed stream | Open to traffic | Pony truss | 1913 | -- | 29.9 ft. | 32.2 ft. |
| Unnamed Stream Bridge | County road over Unnamed stream | Open to traffic | Pony truss | 1910 | -- | 55.1 ft. | 56.1 ft. |
| West Branch North Fork Elkhorn River Bridge | COLL 7712 over West Branch North Fork Elkhorn River | Open to traffic | Pony truss | 1935 | -- | 48.9 ft. | 50.9 ft. |
| Willow Creek Bridge | County road over Willow Creek | Open to traffic | Pony truss | 1935 | -- | 49.9 ft. | 49.9 ft. |
| Willow Creek Bridge | County road over Willow Creek | Open to traffic | Pony truss | 1910 | -- | 49.9 ft. | 65.9 ft. |
| Willow Creek Bridge | COLL 7713 over Willow Creek | Open to traffic | Pony truss | 1933 | -- | 47.9 ft. | 50.9 ft. |
| Willow Creek Bridge | County road over Willow Creek | Open to traffic | Pony truss | 1915 | -- | 49.9 ft. | 51.8 ft. |
| Yankton Slough Bridge | County road over Yankton Slough | Open to traffic | Pony truss | 1910 | -- | 44.0 ft. | 45.9 ft. |
| Yankton Slough Bridge | FAS 2860 over Yankton Slough | Open to traffic | Pony truss | 1935 | -- | 49.9 ft. | 51.8 ft. |
| Yankton Slough Bridge | County road over Yankton Slough | Open to traffic | Pony truss | 1935 | -- | 47.9 ft. | 49.9 ft. |